Hibiscus syriacus Red Heart

Red Heart Rose-of-Sharon

Hibiscus syriacus ‘Red Heart’ — commonly known as Red Heart Rose of Sharon — is a deciduous flowering shrub prized for its large, pure white single flowers highlighted by a bold crimson-red center from midsummer into early fall. The blooms stand out sharply against medium green foliage and give the plant a clean, elegant appearance while providing dependable late-season color when few shrubs are flowering. Its upright habit makes it especially useful where vertical structure and summer bloom are desired.

Type: Deciduous shrub

Mature Size:
Width: 6–8 ft
Height: 8–10 ft

USDA Zones: 5a–8b

Form: Upright, vase-shaped shrub

Light: Full sun

Soil: Average, well-drained soil; adaptable to clay, loam, and sandy soils

Water: Moderate; drought tolerant once established

Wildlife: Attracts bees, butterflies, and hummingbirds

Features & Landscape Uses: Excellent for flowering hedges, mixed shrub borders, screening, specimen planting, and pollinator gardens. Long bloom season provides strong summer interest and performs well in urban landscapes.

Care: Prune in late winter or early spring since flowers develop on new wood. Remove volunteer seedlings if needed. Benefits from occasional deep watering during prolonged dry periods. 🌿🌸

Plant type

Flowering Deciduous Shrub

Height

10'

Width

6-8'

Hardiness zones

5–8

Sunlight

Full Sun

Growth rate

Fast

Bloom time

Early Fall, Fall, Late Summer

Flower color

White

Leaf color

Green

Fall color

Yellow Green

Attracts

Butterflies, Hummingbirds

Soil

Highly Adaptable, Humus rich, Well Drained

Landscape use

Foundation

Shape

Upright, Vase Shaped

Bark

Smooth

Fragrant

Yes

Deer resistant

Yes

Drought tolerant

No